NFC: NULL out the dev->rfkill to prevent UAF
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.18.3 by commit 4f5d71930f41be78557f9714393179025baacd65, it was introduced in version v5.16 by commit 3e3b5dfcd16a3e254aab61bd1e8c417dd4503102. For more details please see the references link.